officials say his older brother tamerlan spent time on jihadist websites reading extremist propaganda including inspire magazine, which is aimed at aspiring lone wolf terrorists. the last fatal victim, m.i.t. officer sean collier was laid to rest today in massachusetts. his casket watched over by a police honor guard. the mourners were led by collier's parents and five siblings. vice president joe biden will attend a public memorial tomorrow. 8-year-old martin richard was also laid to rest this morning in a private funeral. a public memorial is also being planned. as for the survivors, amazingly, only one victim is still in critical condition. 45 remain hospitalized. of the total 264 injured, boston public health commission says the number of injured has increased because some victims delayed getting medical attention and are just now seeing a doctor. boston's recovery continues as the six-block area around the marathon finish line is now reopened to businesses and residents for the first time since the attack. nbc news national investigative correspondent mike isikoff remains in bost